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-rw-r--r--Makefile.inc46
-rw-r--r--src/arch/arm/Makefile.inc4
-rw-r--r--src/arch/arm64/Makefile.inc8
-rw-r--r--src/arch/mips/Makefile.inc4
-rw-r--r--src/arch/riscv/Makefile.inc4
5 files changed, 66 insertions, 0 deletions
diff --git a/Makefile.inc b/Makefile.inc
index 5f4725d5e6..a07f92a800 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -846,6 +846,52 @@ board_id-type := raw
$(obj)/board_id:
printf $(CONFIG_BOARD_ID_STRING) > $@
+# Ensure that no payload segment overlaps with memory regions used by ramstage
+# (not for x86 since it can relocate itself in that case)
+ifneq ($(CONFIG_ARCH_X86),y)
+check-ramstage-overlap-regions := ramstage
+check-ramstage-overlap-files :=
+ifneq ($(CONFIG_PAYLOAD_NONE),y)
+check-ramstage-overlap-files += $(CONFIG_CBFS_PREFIX)/payload
+endif
+
+# will output one or more lines of "<load address in hex> <memlen in decimal>"
+cbfs-get-segments-cmd = $(CBFSTOOL) $(obj)/coreboot.pre print -v | sed -n \
+ '\%$(1)%,\%^[^ ]\{4\}%s% .*load: \(0x[0-9a-fA-F]*\),.*length: [0-9]*/\([0-9]*\).*%\1 \2%p'
+
+ramstage-symbol-addr-cmd = $(OBJDUMP_ramstage) -t $(objcbfs)/ramstage.elf | \
+ sed -n '/ $(1)$$/s/^\([0-9a-fA-F]*\) .*/0x\1/p'
+
+check-ramstage-overlaps: $(obj)/coreboot.pre
+ programs=$$($(foreach file,$(check-ramstage-overlap-files), \
+ $(call cbfs-get-segments-cmd,$(file)) ; )) ; \
+ regions=$$($(foreach region,$(check-ramstage-overlap-regions), \
+ echo $(region) ; \
+ $(call ramstage-symbol-addr-cmd,_$(region)) ; \
+ $(call ramstage-symbol-addr-cmd,_e$(region)) ; )) ; \
+ pstart= ; pend= ; \
+ for x in $$programs; do \
+ if [ -z $$pstart ]; then pstart=$$(($$x)) ; continue ; fi ; \
+ pend=$$(($$pstart + $$x)) ; \
+ rname= ; rstart= ; rend= ; \
+ for y in $$regions ; do \
+ if [ -z $$rname ]; then rname=$$y ; continue ; fi ; \
+ if [ -z $$rstart ]; then rstart=$$(($$y)) ; continue ; fi ; \
+ rend=$$(($$y)) ; \
+ if [ $$pstart -lt $$rend -a $$rstart -lt $$pend ]; then \
+ echo "ERROR: Ramstage region _$$rname overlapped by:" \
+ $(check-ramstage-overlap-files) ; \
+ exit 1 ; \
+ fi ; \
+ rname= ; rstart= ; rend= ; \
+ done ; \
+ pstart= ; pend= ; \
+ done
+
+INTERMEDIATE+=check-ramstage-overlaps
+PHONY+=check-ramstage-overlaps
+endif
+
junit.xml:
echo "Building $(UTIL)"
echo '<?xml version="1.0" encoding="utf-8"?><testsuite>' > $@.tmp
diff --git a/src/arch/arm/Makefile.inc b/src/arch/arm/Makefile.inc
index b04a3dbd12..d9c88c0db0 100644
--- a/src/arch/arm/Makefile.inc
+++ b/src/arch/arm/Makefile.inc
@@ -25,6 +25,10 @@ ifeq ($(CONFIG_ARCH_ROMSTAGE_ARM),y)
CBFSTOOL_PRE1_OPTS = -m arm -s $(CONFIG_CBFS_SIZE)
endif
+ifeq ($(CONFIG_ARCH_RAMSTAGE_ARM),y)
+check-ramstage-overlap-regions += postram_cbfs_cache stack ttb
+endif
+
ifeq ($(CONFIG_ARCH_ARM),y)
subdirs-y += libgcc/
subdirs-y += armv4/ armv7/
diff --git a/src/arch/arm64/Makefile.inc b/src/arch/arm64/Makefile.inc
index f44ee51f36..dffdd9cd2e 100644
--- a/src/arch/arm64/Makefile.inc
+++ b/src/arch/arm64/Makefile.inc
@@ -33,6 +33,10 @@ ifeq ($(CONFIG_ARCH_ROMSTAGE_ARM64),y)
CBFSTOOL_PRE1_OPTS = -m arm64 -s $(CONFIG_CBFS_SIZE)
endif
+ifeq ($(CONFIG_ARCH_RAMSTAGE_ARM64),y)
+check-ramstage-overlap-regions += postram_cbfs_cache stack ttb
+endif
+
################################################################################
# bootblock
################################################################################
@@ -182,6 +186,8 @@ $(BL31_CBFS)-type := stage
$(BL31_CBFS)-compression := $(CBFS_COMPRESS_FLAG)
cbfs-files-y += $(BL31_CBFS)
+check-ramstage-overlap-files += $(BL31_CBFS)
+
ifeq ($(CONFIG_ARM64_USE_SECURE_OS),y)
SECURE_OS_FILE := $(CONFIG_ARM64_SECURE_OS_FILE)
@@ -190,6 +196,8 @@ $(SECURE_OS_FILE_CBFS)-file := $(SECURE_OS_FILE)
$(SECURE_OS_FILE_CBFS)-type := stage
cbfs-files-y += $(SECURE_OS_FILE_CBFS)
+check-ramstage-overlap-files += $(SECURE_OS_FILE_CBFS)
+
endif # CONFIG_ARM64_USE_SECURE_OS
endif # CONFIG_ARM64_USE_ARM_TRUSTED_FIRMWARE
diff --git a/src/arch/mips/Makefile.inc b/src/arch/mips/Makefile.inc
index a037525419..0901388221 100644
--- a/src/arch/mips/Makefile.inc
+++ b/src/arch/mips/Makefile.inc
@@ -22,6 +22,10 @@ ifeq ($(CONFIG_ARCH_ROMSTAGE_MIPS),y)
CBFSTOOL_PRE1_OPTS = -m mips -s $(CONFIG_CBFS_SIZE)
endif
+ifeq ($(CONFIG_ARCH_RAMSTAGE_MIPS),y)
+check-ramstage-overlap-regions += stack
+endif
+
###############################################################################
# bootblock
###############################################################################
diff --git a/src/arch/riscv/Makefile.inc b/src/arch/riscv/Makefile.inc
index 2d4d7e6c25..4abaf586d9 100644
--- a/src/arch/riscv/Makefile.inc
+++ b/src/arch/riscv/Makefile.inc
@@ -19,6 +19,10 @@ riscv_flags = -I$(src)/arch/riscv/
riscv_asm_flags =
+ifeq ($(CONFIG_ARCH_RAMSTAGE_RISCV),y)
+check-ramstage-overlap-regions += stack
+endif
+
################################################################################
## bootblock
################################################################################